自组装席夫碱缓蚀膜在油田水中对碳钢的缓蚀行为
Inhibition Behavior of Self-assembled Films of Schiff Base for Crabon Steel in Oilfield Water
摘 要
碳钢表面自组装邻氧乙酸苯甲醛缩间氨基苯甲酸二钾席夫碱(K2L2)缓蚀膜。采用极化曲线、电化学阻抗谱和扫描电镜研究了自组装缓蚀膜在模拟实际工作环境中对碳钢的缓蚀性能。结果表明:矿化度、温度、pH、流动状态和H2S含量对自组装缓蚀膜在CO2饱和油田水中的缓蚀性能具有一定的影响，但仍有较高的缓蚀率，当油田水中H2S质量分数为200 mg/L时，缓蚀率达到80.0%。
自组装
缓蚀膜
油田水
carbon steel
self-assembling
inhibition film
oilfield water
Abstract
Self-assembled inhibition films were prepared by 2-[(3-carboxyl) phenyl iminomethyane] phenoxy acetic acid Schiff base (K2L2) on carbon steel surface, and the inhibition performance for carbon steel in the environment of the actual work was studied by polarization curve, electrochemical impedance spectroscopy and scanning electron microscopy (SEM). The results indicated that the oil water salinity, temperature, pH value, flow velocity and H2S concentration had infulences on the inhibition perpormance of self-assembled films of K2L2 in saturation CO2 oilfield water, but there was still a higher inhibition efficiency, and the inhibition efficiency of self-assembled films of K2L2 still reached 80.0% with 200 mg/L H2S in oilfield water.
中图分类号 TG174.42 DOI 10.11973/fsyfh-201603003
所属栏目 试验研究
基金项目 国家自然科学基金(21266006); 广西自然科学基金(2012GXNSFAA053034).
收稿日期 2015/3/1
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联系人作者刘峥(lisa4.6@163.com)
备注刘峥(1962-),教授,博士,从事材料腐蚀与防护方向研究,
引用该论文: GAN Shao-feng,LIU Zheng,ZHANG Jing,YANG Rui-shan,CHEN Shi-liang,ZHNAG Lin-zhi. Inhibition Behavior of Self-assembled Films of Schiff Base for Crabon Steel in Oilfield Water[J]. Corrosion & Protection, 2016, 37(3): 195
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参考文献
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【2】BEHPOUR M, GHOREISHI S M, MOHAMMADI N, et al. Investigation of some schiff base compounds containing disulfide bond as HCl corrosion inhibitors for mild steel[J]. Corros Sci, 2010, 52: 4046-4057.
【3】李春福. 油气开发过程中的CO2腐蚀机理及防护技术研究[D]. 成都:西南石油学院,2005.
【4】任呈强. N80油管钢在含CO2/H2S高温高压两相介质中的电化学腐蚀行为及缓蚀机理研究[D]. 成都:西北工业大学,2003.
【5】GOVINDARAJU K M, GOPI D, KAVITHA L. Inhibiting effects of 4-amino-antipyrine based schiff base derivatives on the corrosion of mild steel in hydrochloric acid[J]. J Appl Electrochem, 2009, 39:2345-2352.
【6】全贞兰,陈慎豪,华兰,等. 席夫碱在铜表面上的自组装膜的SEM和XPS研究[J]. 科学通报,2001, 46(19):1618-1629.
【7】ISMAIL A A, NABEL A N. Some schiff base surfactants as steel-corrosion inhibitors[J]. J Surfact Deterg, 2009(12):313-319.
【8】MIGAHED M A, FARAG A A, ELSAED S M. Synthesis of a new family of schiff base nonionic surfactants and evaluation of their corrosion inhibition effect on X-65 type tubing steel in deep oil wells formation water[J]. Materials Chemistry and Physics, 2011, 125:125-135.
【9】杨立红,李建平,石在虹,等. 两种油管材料在模拟油田水溶液中的CO2腐蚀行为[J]. 腐蚀科学与防护技术,2010, 22(2):131-135.
【10】李强. Cr13钢在饱和CO2/H2S介质中腐蚀与防护研究[D]. 北京:北京化工大学,2011.
【11】徐群杰,周国定,陆柱. 苯并三氮唑和5-羧基苯并三氮唑对铜缓蚀作用的光电化学比较[J]. 中国有色金属学报,2001,11(5):925-928.
【12】陈长风. 油套管钢CO2腐蚀电化学行为与腐蚀产物膜特性研究[D]. 西安:西北工业大学,2002.
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